Ajaan Lee focuses on what other people say as one of the tests for a mind that’s really at peace. The Buddha makes a similar point in one of the Dhammapada verses.

"It’s interesting that Ajaan Lee focuses on what other people say as one of the tests for a mind that’s really at peace. The Buddha makes a similar point in one of the Dhammapada verses. “If, when other people say harsh things to you and you don’t reverberate — like a cracked gong — that’s a sign that you’ve attained true peace of mind.” This might seem strange. Why does the test lie in how you react to what other people say?

The mind is very sensitive to this issue. We learn very early in our lives that our happiness is going to depend on how other people treat us. As children, we’re surrounded by people a lot more powerful than we are, so there’s always a sense of fear built into our relationships to the people around us. We become sensitive to other people’s moods, sensitive to what they might do, what they might say. As a result, our center of gravity is placed outside because we’re afraid of them, and we try to put up a wall outside ourselves to protect ourselves from them.

What this means is that our psychic center of gravity gets moved outside the body. If you’ve ever taken any martial arts classes, you know that if your center of gravity is outside your body you’re in bad shape. You’re in a weak position.

Now the Buddha doesn’t say to ignore other people and just be very selfish. He says there’s a different way to approach the whole issue of happiness. In other words, you find a source for happiness that doesn’t take anything away from anyone else, so you don’t have to be afraid of other people. When you’re not afraid of them, you find that you can actually be more compassionate to them. So developing and maintaining this center inside is not a selfish thing. The Buddha’s not teaching you to be insensitive. He’s just saying to put yourself in a stronger position and to trust that you’re stronger by not trying to go outside and fix up people’s moods and all the other things that we think we can do with other people when we’re dealing with them. Just stay inside and have a sense of confidence that you’re strong inside. After all, your source of happiness lies inside. Because it’s not taking anything away from anybody else, you don’t have to be afraid of them.

Especially when you can get your awareness to fill the whole body, when you get the breath flowing smoothly throughout the whole body: This smooth flow of energy builds up a kind of force field. An image in the Canon is that the meditator who’s able to fill the body with awareness is like a door made out of solid wood. If you were to take a ball of string and throw it at the door, it wouldn’t make any dent in the door at all. The mind filled with awareness, with the breath energy flowing smoothly, is the same sort of thing. It’s solid. It resists outside influences."

~ Thanissaro Bhikkhu "Social Anxiety" (Meditations3)